COUPSYL® LS-DENSIFIER as a liquid lithium-based concrete densifier is a colorless, transparent and full mineral solution. This product with its high penetration into the concrete and cement texture while reacting with the free lime and forming calcium silicate crystals has blocked the pores and capillary tubes. It does not allow water or steam particles, oil and even harmful gases to penetrate. Also, it actually removes efflorescence from concrete surfaces by absorbing calcium and calcareous compounds. In other words, this product with its high penetration strength increases the texture density of these surfaces.Therefore, concrete surfaces that have been reinforced with lithium-based concrete densifier are actually waterproof by losing their absorption and penetration centers and they are impermeable to a great extent.